Improvement in nut-locks



A. WALTON.

NUT-LOCK.

110177.594. Patented my1s,1a7e.

fi'gl A l HIIIIILHQ WITNESSES UNITED STATES PATENT OFFICE.

AMOS WALTON, OF BROWNING, ILLINOIS.

IMPROVEMENT IN NUT-LOCKS.

Specification forming part of Letters Patent No. I 77,594, dated May 16, 1876; application filed April 7, 1876.

To all whom it may concern:

Be it known that I, AMOS WALTON, of Browning, in the county of Schuyler, and in the State ofIllinois, have invented certain new and useful Improvements in Nut- Lock and Washer for Bolts; and do hereby declare that the followingis a full, clear, and exact description thereof, reference being bad to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

The nature of my invention consists in the employment, in connection with a bolt and nut and peculiarly shaped washer, a crank pin, which acts as a lock, as will be hereinafter more particularly described.

In the annexed drawings, which make a part of this specification, Figures 1 and 2 are perspectives, and Fig.3 a cross-section in line of the bolt.

In the figures, A represents the fish-bar or rail through which the bolt passes; B, the washer, and O the nut.

The nut is constructed in the usual manner, but the construction ofthe washer is peculiar. Its outer face is cut away, as seen at a, to form a recess, and then a radial groove is cut from this recess to the center of said washer. Another small recess is formed at m at the inner end of the groove 6.

E represents what I denominate a crankpin, and which is made, when lying upon the washer, so that it will fit in the recesses and groovejust described. When it is desired to secure a nut by this pin, said pin is placed in the groove so that it will lie flat with the surface of the Washer. The nut is then placed over the bolt andscrewed down tight. The crank-pin is then turned so that its outer end stands in a vertical position, as represented in Fig. 1. The nut is then turned back slightly, or as far as it will go, so that it binds on the upturned end of the pin, and is thus held securely from being removed from the bolt.

To remove the nut it is evident that it is only necessary to turn the crank-pin down until its upturned end rests in the groove or recess a. This arrangement is simple and efiective, as well as cheap.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The washer B, constructed with its recesses and groove in connection with the crank-pin E, and the not C and bolt D, as and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 23d day of March, 1876.

AMOS WALTON Witnesses:

Tnos. J. WALLACE, ROBERT Boone. 

